/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:39:12,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:39:12,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:39:12,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:39:12,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:39:12,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:39:12,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:39:12,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:39:12,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:39:12,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:39:12,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:39:12,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:39:12,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:39:12,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:39:12,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:39:12,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:39:12,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 21:39:12,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 21:39:12,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:39:12,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:39:12,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:39:12,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:39:12,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:39:12,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:39:12,838 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:39:12,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:39:12,839 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:39:12,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:39:12,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:39:12,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:39:12,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:39:12,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:39:12,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:39:12,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:39:12,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:39:12,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:39:12,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:39:12,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:39:12,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:39:12,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:39:12,858 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:39:13,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:39:13,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:39:13,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:39:13,183 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:39:13,184 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:39:13,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl [2021-07-14 21:39:13,185 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl' [2021-07-14 21:39:13,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:39:13,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:39:13,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:39:13,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:39:13,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:39:13,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:39:13,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:39:13,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:39:13,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:39:13,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... [2021-07-14 21:39:13,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:39:13,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:39:13,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:39:13,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:39:13,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:39:13,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:39:13,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:39:13,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:39:13,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:39:13,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:39:13,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:39:13,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:39:13,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:39:13,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:39:13,350 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:39:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:39:13,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:39:13,351 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 21:39:13,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:39:13,511 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:39:13,513 INFO L202 PluginConnector]: Adding new model min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:39:13 BoogieIcfgContainer [2021-07-14 21:39:13,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:39:13,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:39:13,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:39:13,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:39:13,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:39:13" (1/2) ... [2021-07-14 21:39:13,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df2778 and model type min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:39:13, skipping insertion in model container [2021-07-14 21:39:13,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:39:13" (2/2) ... [2021-07-14 21:39:13,520 INFO L111 eAbstractionObserver]: Analyzing ICFG min-array-hom.wvr.bpl [2021-07-14 21:39:13,525 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:39:13,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:39:13,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:39:13,526 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:39:13,555 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:39:13,574 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 21:39:13,624 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:39:13,625 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:39:13,625 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:39:13,625 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:39:13,625 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:39:13,625 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:39:13,625 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:39:13,625 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:39:13,686 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:13,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:13,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1056010628, now seen corresponding path program 1 times [2021-07-14 21:39:13,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:13,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140239092] [2021-07-14 21:39:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:13,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:13,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140239092] [2021-07-14 21:39:13,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140239092] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:39:13,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:39:13,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:39:13,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074327931] [2021-07-14 21:39:13,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:39:13,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:13,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:39:13,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:39:13,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:13,878 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:13,883 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) [2021-07-14 21:39:13,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:13,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:13,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:39:13,913 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:13,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:13,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1283631334, now seen corresponding path program 1 times [2021-07-14 21:39:13,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:13,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376005103] [2021-07-14 21:39:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:39:13,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:13,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376005103] [2021-07-14 21:39:13,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376005103] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:39:13,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:39:13,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:39:13,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311666415] [2021-07-14 21:39:13,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:39:13,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:13,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:39:13,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:39:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:13,990 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:13,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:13,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:13,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:14,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:14,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:39:14,036 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:14,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1880625638, now seen corresponding path program 1 times [2021-07-14 21:39:14,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:14,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296533604] [2021-07-14 21:39:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:14,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:14,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296533604] [2021-07-14 21:39:14,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296533604] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:14,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260038599] [2021-07-14 21:39:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:14,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 21:39:14,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:14,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:39:14,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260038599] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:39:14,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-14 21:39:14,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2021-07-14 21:39:14,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719240274] [2021-07-14 21:39:14,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:39:14,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:14,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:39:14,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-14 21:39:14,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:14,302 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:14,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:14,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:14,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:14,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:14,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:14,583 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:14,583 INFO L82 PathProgramCache]: Analyzing trace with hash 830293816, now seen corresponding path program 1 times [2021-07-14 21:39:14,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:14,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547106541] [2021-07-14 21:39:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:14,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:14,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547106541] [2021-07-14 21:39:14,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547106541] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:14,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870772202] [2021-07-14 21:39:14,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:15,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 21:39:15,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:15,622 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:39:15,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2021-07-14 21:39:15,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:15,635 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:15,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-07-14 21:39:15,637 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:15,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:15,705 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:39:15,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2021-07-14 21:39:15,708 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:15,717 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:15,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-07-14 21:39:15,725 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:15,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:15,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:39:15,786 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:133, output treesize:83 [2021-07-14 21:39:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:15,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870772202] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:15,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:15,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 21:39:15,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895007573] [2021-07-14 21:39:15,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:39:15,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:15,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:39:15,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:39:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:15,925 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:15,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:15,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:15,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:15,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:15,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:16,204 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-07-14 21:39:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:16,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:16,557 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:16,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:16,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1021259562, now seen corresponding path program 2 times [2021-07-14 21:39:16,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:16,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519486329] [2021-07-14 21:39:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:16,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:16,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519486329] [2021-07-14 21:39:16,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519486329] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:16,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780222438] [2021-07-14 21:39:16,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:16,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:39:16,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:16,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:39:16,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:16,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780222438] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:16,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:16,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 21:39:16,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410493387] [2021-07-14 21:39:16,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:39:16,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:16,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:39:16,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:39:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:16,772 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:16,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:16,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:16,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:16,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:16,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:16,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:17,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:17,196 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:17,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:17,196 INFO L82 PathProgramCache]: Analyzing trace with hash -925346888, now seen corresponding path program 1 times [2021-07-14 21:39:17,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:17,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945060171] [2021-07-14 21:39:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:17,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:17,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945060171] [2021-07-14 21:39:17,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945060171] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:17,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617058611] [2021-07-14 21:39:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:17,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 21:39:17,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:18,746 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-07-14 21:39:19,048 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2021-07-14 21:39:19,185 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_13], 2=[A, v_prenex_14]} [2021-07-14 21:39:19,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:19,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:39:19,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:19,312 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-07-14 21:39:19,312 INFO L628 ElimStorePlain]: treesize reduction 54, result has 69.8 percent of original size [2021-07-14 21:39:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:19,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:19,317 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 28 treesize of output 16 [2021-07-14 21:39:19,318 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:19,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:19,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:19,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:19,383 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 28 treesize of output 16 [2021-07-14 21:39:19,385 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:19,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:19,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:19,390 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 21 treesize of output 13 [2021-07-14 21:39:19,392 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:19,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:19,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-07-14 21:39:19,450 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:193, output treesize:51 [2021-07-14 21:39:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:19,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617058611] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:19,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:19,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:39:19,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857216233] [2021-07-14 21:39:19,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:39:19,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:19,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:39:19,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:39:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:19,552 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:19,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:19,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:19,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:19,973 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-14 21:39:20,478 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-07-14 21:39:20,654 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-07-14 21:39:20,861 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-07-14 21:39:21,053 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2021-07-14 21:39:21,338 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-07-14 21:39:21,530 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-07-14 21:39:21,891 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-07-14 21:39:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:22,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-14 21:39:22,268 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:22,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:22,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1682038358, now seen corresponding path program 2 times [2021-07-14 21:39:22,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:22,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088268145] [2021-07-14 21:39:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:22,342 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:22,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:22,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088268145] [2021-07-14 21:39:22,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088268145] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:22,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402202357] [2021-07-14 21:39:22,343 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:22,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:39:22,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:22,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:39:22,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:22,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402202357] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:22,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:22,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:39:22,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112465910] [2021-07-14 21:39:22,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:39:22,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:22,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:39:22,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:39:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:22,523 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:22,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:22,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:22,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:22,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:22,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:22,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:22,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:22,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:22,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:22,997 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:22,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:22,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1511259848, now seen corresponding path program 3 times [2021-07-14 21:39:22,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:22,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967338724] [2021-07-14 21:39:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:23,698 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-07-14 21:39:23,888 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-07-14 21:39:24,085 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-07-14 21:39:24,240 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-07-14 21:39:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:24,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:24,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967338724] [2021-07-14 21:39:24,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967338724] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:24,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232728378] [2021-07-14 21:39:24,392 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:24,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 21:39:24,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:24,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 21:39:24,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:25,107 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-07-14 21:39:25,374 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-14 21:39:26,036 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-14 21:39:26,865 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 103 [2021-07-14 21:39:27,780 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2021-07-14 21:39:28,113 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_63, v_prenex_52], 5=[v_prenex_61, A, v_prenex_51, v_prenex_62, v_prenex_56, v_prenex_59], 6=[v_prenex_60, v_prenex_53]} [2021-07-14 21:39:28,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:28,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-07-14 21:39:28,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:28,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2021-07-14 21:39:28,144 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:28,498 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 126 [2021-07-14 21:39:28,499 INFO L628 ElimStorePlain]: treesize reduction 229, result has 59.0 percent of original size [2021-07-14 21:39:28,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:28,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:39:28,509 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:28,628 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-07-14 21:39:28,629 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:28,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:28,654 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:28,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:39:28,656 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:28,775 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-07-14 21:39:28,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:28,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:28,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:28,801 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:28,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 24 [2021-07-14 21:39:28,804 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:28,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:28,825 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:28,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 27 [2021-07-14 21:39:28,827 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:28,958 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-14 21:39:28,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:28,968 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:28,985 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-07-14 21:39:28,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 31 [2021-07-14 21:39:28,987 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:29,098 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-07-14 21:39:29,099 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:29,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:29,117 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:29,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 35 [2021-07-14 21:39:29,121 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:29,255 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-14 21:39:29,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:29,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:29,283 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:29,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:39:29,284 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:29,400 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-14 21:39:29,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:29,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:29,417 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:29,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 38 [2021-07-14 21:39:29,424 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:29,526 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-14 21:39:29,526 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:29,527 INFO L518 ElimStorePlain]: Eliminatee v_prenex_60 vanished before elimination [2021-07-14 21:39:29,527 INFO L518 ElimStorePlain]: Eliminatee v_prenex_53 vanished before elimination [2021-07-14 21:39:29,540 INFO L550 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 10 dim-1 vars, End of recursive call: and 8 xjuncts. [2021-07-14 21:39:29,541 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 26 variables, input treesize:602, output treesize:92 [2021-07-14 21:39:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:29,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232728378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:29,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:29,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 25 [2021-07-14 21:39:29,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474652467] [2021-07-14 21:39:29,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:39:29,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:29,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:39:29,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:39:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:29,651 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:29,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:29,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:29,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:30,130 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2021-07-14 21:39:30,375 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 48 [2021-07-14 21:39:30,618 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 52 [2021-07-14 21:39:30,834 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-07-14 21:39:31,291 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-07-14 21:39:31,667 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-07-14 21:39:32,049 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 109 [2021-07-14 21:39:32,684 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 87 [2021-07-14 21:39:33,306 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2021-07-14 21:39:34,233 WARN L205 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 141 [2021-07-14 21:39:34,883 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 117 [2021-07-14 21:39:35,819 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 156 [2021-07-14 21:39:37,592 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 218 DAG size of output: 170 [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:38,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-07-14 21:39:38,008 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:38,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:38,008 INFO L82 PathProgramCache]: Analyzing trace with hash 104008918, now seen corresponding path program 4 times [2021-07-14 21:39:38,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:38,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574959458] [2021-07-14 21:39:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:38,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:38,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574959458] [2021-07-14 21:39:38,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574959458] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:38,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163219725] [2021-07-14 21:39:38,082 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:38,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:39:38,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:38,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:39:38,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:38,265 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:38,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163219725] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:38,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:38,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:39:38,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431535401] [2021-07-14 21:39:38,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:39:38,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:38,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:39:38,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:39:38,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:38,267 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:38,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:38,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:38,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:38,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:38,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:38,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:38,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:38,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:38,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:38,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:39:38,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-07-14 21:39:38,800 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:38,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:38,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1874096200, now seen corresponding path program 5 times [2021-07-14 21:39:38,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:38,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703282538] [2021-07-14 21:39:38,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:40,147 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 162 [2021-07-14 21:39:40,579 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2021-07-14 21:39:40,800 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 170 [2021-07-14 21:39:41,483 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 129 [2021-07-14 21:39:41,667 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 169 [2021-07-14 21:39:42,363 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 128 [2021-07-14 21:39:42,561 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 153 [2021-07-14 21:39:43,089 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 97 [2021-07-14 21:39:43,226 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 148 [2021-07-14 21:39:43,743 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 92 [2021-07-14 21:39:44,100 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 51 [2021-07-14 21:39:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:44,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:44,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703282538] [2021-07-14 21:39:44,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703282538] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:44,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514201453] [2021-07-14 21:39:44,347 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:44,397 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:39:44,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:44,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 21:39:44,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:45,086 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-14 21:39:45,867 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-07-14 21:39:47,969 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 269 [2021-07-14 21:39:50,447 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 508 [2021-07-14 21:39:55,918 WARN L205 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 562 DAG size of output: 541 [2021-07-14 21:40:00,191 WARN L205 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 564 DAG size of output: 541 [2021-07-14 21:40:03,574 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 540 DAG size of output: 367 [2021-07-14 21:40:03,812 INFO L446 ElimStorePlain]: Different costs {7=[v_prenex_161, v_prenex_162, v_prenex_151, v_prenex_152, v_prenex_153, v_prenex_154, v_prenex_143, v_prenex_144, v_prenex_155, v_prenex_145, v_prenex_147, v_prenex_159, v_prenex_149], 10=[A, v_prenex_160, v_prenex_150, v_prenex_156, v_prenex_157, v_prenex_146, v_prenex_158, v_prenex_148]} [2021-07-14 21:40:03,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:03,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:03,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:03,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:03,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:40:03,848 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:05,490 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 437 DAG size of output: 412 [2021-07-14 21:40:05,491 INFO L628 ElimStorePlain]: treesize reduction 163, result has 87.8 percent of original size [2021-07-14 21:40:05,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:05,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:05,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:05,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:05,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:05,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:40:05,539 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:05,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:05,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:05,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:05,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:05,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:40:05,566 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:06,329 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 398 [2021-07-14 21:40:06,330 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:06,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:06,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:06,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:06,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:06,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:40:06,358 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:07,113 WARN L205 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2021-07-14 21:40:07,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:07,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:07,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:07,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:07,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:07,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-07-14 21:40:07,151 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:07,854 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2021-07-14 21:40:07,854 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:07,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:07,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:07,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:07,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:07,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:40:07,885 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:08,486 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2021-07-14 21:40:08,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:08,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:08,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:08,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:40:08,524 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:09,089 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2021-07-14 21:40:09,090 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:09,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:40:09,114 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:09,670 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2021-07-14 21:40:09,670 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:09,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:09,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:09,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:40:09,695 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:10,241 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2021-07-14 21:40:10,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:10,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:10,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:10,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:10,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:10,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:40:10,264 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:10,761 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2021-07-14 21:40:10,761 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:10,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:10,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:10,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:10,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:10,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:40:10,783 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:11,238 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2021-07-14 21:40:11,238 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:11,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:11,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:11,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:40:11,260 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:11,683 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 21:40:11,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:11,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:11,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:11,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:11,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:11,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:40:11,712 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:12,121 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-07-14 21:40:12,122 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:40:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:40:12,151 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:12,552 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-07-14 21:40:12,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:12,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,572 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 39 treesize of output 19 [2021-07-14 21:40:12,574 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:12,931 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-07-14 21:40:12,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:12,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:12,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2021-07-14 21:40:12,956 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:13,300 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2021-07-14 21:40:13,300 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:13,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,318 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 45 treesize of output 19 [2021-07-14 21:40:13,319 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:13,643 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-07-14 21:40:13,643 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:13,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:13,677 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 43 treesize of output 19 [2021-07-14 21:40:13,679 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:14,007 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-07-14 21:40:14,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:14,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,025 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 43 treesize of output 19 [2021-07-14 21:40:14,027 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:14,319 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-07-14 21:40:14,319 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,335 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 43 treesize of output 19 [2021-07-14 21:40:14,336 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:14,613 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-07-14 21:40:14,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:14,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,645 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 25 treesize of output 13 [2021-07-14 21:40:14,647 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:14,923 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-07-14 21:40:14,923 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:14,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:40:14,939 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 45 treesize of output 19 [2021-07-14 21:40:14,941 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:40:15,200 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-07-14 21:40:15,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:40:15,220 INFO L550 ElimStorePlain]: Start of recursive call 1: 42 dim-0 vars, 21 dim-1 vars, End of recursive call: and 17 xjuncts. [2021-07-14 21:40:15,220 INFO L247 ElimStorePlain]: Needed 23 recursive calls to eliminate 63 variables, input treesize:1373, output treesize:198 [2021-07-14 21:40:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:15,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514201453] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:15,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:15,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2021-07-14 21:40:15,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325142974] [2021-07-14 21:40:15,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 21:40:15,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:15,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 21:40:15,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2021-07-14 21:40:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:15,394 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:15,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:40:15,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:15,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:15,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:40:15,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:16,319 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2021-07-14 21:40:16,668 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 55 [2021-07-14 21:40:17,037 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2021-07-14 21:40:17,508 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 67 [2021-07-14 21:40:18,234 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 93 [2021-07-14 21:40:19,100 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 103 [2021-07-14 21:40:22,492 WARN L205 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 249 DAG size of output: 206 [2021-07-14 21:40:26,564 WARN L205 SmtUtils]: Spent 3.91 s on a formula simplification. DAG size of input: 593 DAG size of output: 295 [2021-07-14 21:40:28,256 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 184 DAG size of output: 152 [2021-07-14 21:40:33,740 WARN L205 SmtUtils]: Spent 5.32 s on a formula simplification. DAG size of input: 348 DAG size of output: 315 [2021-07-14 21:40:37,308 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 277 DAG size of output: 213 [2021-07-14 21:40:47,426 WARN L205 SmtUtils]: Spent 9.79 s on a formula simplification. DAG size of input: 720 DAG size of output: 520 [2021-07-14 21:40:53,326 WARN L205 SmtUtils]: Spent 5.75 s on a formula simplification. DAG size of input: 365 DAG size of output: 316 [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:40:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:53,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:53,810 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:53,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:53,810 INFO L82 PathProgramCache]: Analyzing trace with hash 415734870, now seen corresponding path program 6 times [2021-07-14 21:40:53,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:53,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060956441] [2021-07-14 21:40:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:53,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:53,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060956441] [2021-07-14 21:40:53,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060956441] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:53,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769274946] [2021-07-14 21:40:53,909 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:53,957 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 21:40:53,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:40:53,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:40:53,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:54,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769274946] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:54,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:54,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-07-14 21:40:54,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125690426] [2021-07-14 21:40:54,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:40:54,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:54,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:40:54,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:40:54,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:54,137 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:54,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:40:54,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:54,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:54,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:54,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:54,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:54,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:40:54,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:54,825 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1341800248, now seen corresponding path program 7 times [2021-07-14 21:40:54,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:54,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279570241] [2021-07-14 21:40:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:56,192 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2021-07-14 21:40:56,572 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 68 [2021-07-14 21:40:56,712 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 198 [2021-07-14 21:40:57,245 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 78 [2021-07-14 21:40:57,547 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 269 [2021-07-14 21:40:58,453 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 158 [2021-07-14 21:40:58,736 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 268 [2021-07-14 21:40:59,641 WARN L205 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 157 [2021-07-14 21:40:59,910 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 241 [2021-07-14 21:41:00,820 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 124 [2021-07-14 21:41:00,975 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 228 [2021-07-14 21:41:01,779 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 111 [2021-07-14 21:41:02,274 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 78 [2021-07-14 21:41:02,575 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 50 [2021-07-14 21:41:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:02,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:02,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279570241] [2021-07-14 21:41:02,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279570241] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:02,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331842851] [2021-07-14 21:41:02,814 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:02,855 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 21:41:02,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:03,430 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-07-14 21:41:04,068 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-07-14 21:41:05,420 WARN L205 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-07-14 21:41:06,757 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 352 [2021-07-14 21:41:10,899 WARN L205 SmtUtils]: Spent 3.35 s on a formula simplification that was a NOOP. DAG size: 419 [2021-07-14 21:41:17,021 WARN L205 SmtUtils]: Spent 4.56 s on a formula simplification. DAG size of input: 877 DAG size of output: 365 [2021-07-14 21:41:24,108 WARN L205 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 427 DAG size of output: 402 [2021-07-14 21:41:30,596 WARN L205 SmtUtils]: Spent 5.09 s on a formula simplification. DAG size of input: 531 DAG size of output: 504 [2021-07-14 21:41:37,764 WARN L205 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 571 DAG size of output: 535 [2021-07-14 21:41:39,028 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_381, v_prenex_372, v_prenex_395, v_prenex_397, v_prenex_389, v_prenex_367, v_prenex_379], 9=[v_prenex_380, v_prenex_382, v_prenex_360, v_prenex_383, v_prenex_361, v_prenex_384, v_prenex_362, v_prenex_385, v_prenex_363, v_prenex_386, v_prenex_364, v_prenex_365, v_prenex_366, v_prenex_368, v_prenex_369, v_prenex_390, v_prenex_391, v_prenex_370, v_prenex_371, v_prenex_394, v_prenex_373, v_prenex_374, v_prenex_396, v_prenex_375, v_prenex_398, v_prenex_376, v_prenex_355, v_prenex_399, v_prenex_377, v_prenex_378, v_prenex_356, v_prenex_357, v_prenex_358, v_prenex_359, A]} [2021-07-14 21:41:39,083 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 33 treesize of output 19 [2021-07-14 21:41:39,086 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:42,158 WARN L205 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 851 DAG size of output: 649 [2021-07-14 21:41:42,159 INFO L628 ElimStorePlain]: treesize reduction 702, result has 71.7 percent of original size [2021-07-14 21:41:42,189 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 33 treesize of output 19 [2021-07-14 21:41:42,191 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:44,593 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 639 DAG size of output: 593 [2021-07-14 21:41:44,594 INFO L628 ElimStorePlain]: treesize reduction 145, result has 91.7 percent of original size [2021-07-14 21:41:44,594 INFO L518 ElimStorePlain]: Eliminatee v_prenex_395 vanished before elimination [2021-07-14 21:41:44,594 INFO L518 ElimStorePlain]: Eliminatee v_prenex_397 vanished before elimination [2021-07-14 21:41:44,594 INFO L518 ElimStorePlain]: Eliminatee v_prenex_389 vanished before elimination [2021-07-14 21:41:44,594 INFO L518 ElimStorePlain]: Eliminatee v_prenex_367 vanished before elimination [2021-07-14 21:41:44,594 INFO L518 ElimStorePlain]: Eliminatee v_prenex_379 vanished before elimination [2021-07-14 21:41:44,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:44,688 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:41:44,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:41:44,696 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:45,895 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 601 [2021-07-14 21:41:45,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:45,896 INFO L518 ElimStorePlain]: Eliminatee v_prenex_382 vanished before elimination [2021-07-14 21:41:45,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:45,979 INFO L354 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2021-07-14 21:41:45,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 45 [2021-07-14 21:41:45,982 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:47,189 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 597 [2021-07-14 21:41:47,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:47,190 INFO L518 ElimStorePlain]: Eliminatee v_prenex_383 vanished before elimination [2021-07-14 21:41:47,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:47,270 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:47,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:47,300 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:49,800 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 596 DAG size of output: 595 [2021-07-14 21:41:49,802 INFO L628 ElimStorePlain]: treesize reduction 13, result has 99.2 percent of original size [2021-07-14 21:41:49,802 INFO L518 ElimStorePlain]: Eliminatee v_prenex_384 vanished before elimination [2021-07-14 21:41:49,802 INFO L518 ElimStorePlain]: Eliminatee v_prenex_362 vanished before elimination [2021-07-14 21:41:49,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:49,883 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:49,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:41:49,885 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:51,057 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 589 [2021-07-14 21:41:51,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:51,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:51,136 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:51,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:41:51,138 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:52,304 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 584 [2021-07-14 21:41:52,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:52,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:52,385 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-14 21:41:52,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 50 treesize of output 52 [2021-07-14 21:41:52,389 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:53,534 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 580 [2021-07-14 21:41:53,535 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:53,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:53,603 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:53,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:53,616 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:54,738 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 575 [2021-07-14 21:41:54,738 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:54,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:54,810 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:54,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:54,820 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:55,945 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 576 [2021-07-14 21:41:55,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:55,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:56,022 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:56,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:56,024 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:57,149 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 570 [2021-07-14 21:41:57,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:57,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:57,221 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:57,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:57,223 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:58,320 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 566 [2021-07-14 21:41:58,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:58,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:58,386 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:58,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:41:58,394 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:59,459 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 560 [2021-07-14 21:41:59,459 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:59,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:59,523 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:59,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:59,534 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:00,623 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 566 [2021-07-14 21:42:00,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:00,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:00,691 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:00,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:42:00,693 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:01,777 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 559 [2021-07-14 21:42:01,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:01,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:01,844 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:01,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:42:01,846 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:02,895 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 552 [2021-07-14 21:42:02,896 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:02,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:02,960 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:02,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:42:02,968 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:05,034 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 548 DAG size of output: 547 [2021-07-14 21:42:05,035 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.7 percent of original size [2021-07-14 21:42:05,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:05,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:05,115 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:05,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 36 treesize of output 38 [2021-07-14 21:42:05,118 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:05,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:05,199 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:05,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 41 [2021-07-14 21:42:05,202 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:06,213 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 538 [2021-07-14 21:42:06,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:06,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:06,285 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:06,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:42:06,287 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:07,321 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 531 [2021-07-14 21:42:07,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:07,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:07,385 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:07,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:42:07,387 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:08,375 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 524 [2021-07-14 21:42:08,376 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:08,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:08,435 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:08,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:42:08,442 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:09,396 WARN L205 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 515 [2021-07-14 21:42:09,396 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:09,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:09,476 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:42:09,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:42:09,484 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:10,427 WARN L205 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2021-07-14 21:42:10,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:10,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:10,483 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:10,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:42:10,489 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:11,398 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 498 [2021-07-14 21:42:11,398 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:11,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:11,456 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:11,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:42:11,458 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:12,349 WARN L205 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 491 [2021-07-14 21:42:12,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:12,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_355 vanished before elimination [2021-07-14 21:42:12,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_399 vanished before elimination [2021-07-14 21:42:12,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_377 vanished before elimination [2021-07-14 21:42:12,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_378 vanished before elimination [2021-07-14 21:42:12,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:12,410 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:12,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:42:12,412 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:13,275 WARN L205 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2021-07-14 21:42:13,275 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:13,293 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:13,334 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:13,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:42:13,336 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:14,182 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 477 [2021-07-14 21:42:14,182 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:14,200 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:14,238 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:14,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:42:14,240 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:15,082 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2021-07-14 21:42:15,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:15,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:15,136 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:15,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:42:15,138 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:15,950 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2021-07-14 21:42:15,951 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:15,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:16,004 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:42:16,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:42:16,006 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:16,803 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2021-07-14 21:42:16,804 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:16,904 INFO L550 ElimStorePlain]: Start of recursive call 1: 70 dim-0 vars, 42 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-07-14 21:42:16,904 INFO L247 ElimStorePlain]: Needed 31 recursive calls to eliminate 112 variables, input treesize:2507, output treesize:278 [2021-07-14 21:42:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:17,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331842851] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:17,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:42:17,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 21:42:17,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070524212] [2021-07-14 21:42:17,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:42:17,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:42:17,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:42:17,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:42:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:17,137 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:42:17,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 33 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:42:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:17,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:17,841 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 34 [2021-07-14 21:42:18,485 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2021-07-14 21:42:18,869 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2021-07-14 21:42:19,145 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-07-14 21:42:19,502 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2021-07-14 21:42:20,096 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 83 [2021-07-14 21:42:20,732 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 91 [2021-07-14 21:42:21,895 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 139 [2021-07-14 21:42:23,715 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 222 DAG size of output: 160 [2021-07-14 21:42:24,948 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 232 DAG size of output: 149 [2021-07-14 21:42:29,150 WARN L205 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 399 DAG size of output: 250 [2021-07-14 21:42:31,944 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 479 DAG size of output: 362 [2021-07-14 21:42:36,565 WARN L205 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 414 DAG size of output: 286 [2021-07-14 21:42:40,698 WARN L205 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 333 DAG size of output: 246 [2021-07-14 21:42:52,525 WARN L205 SmtUtils]: Spent 11.51 s on a formula simplification. DAG size of input: 511 DAG size of output: 430 [2021-07-14 21:42:55,532 WARN L205 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 507 DAG size of output: 362 [2021-07-14 21:43:07,787 WARN L205 SmtUtils]: Spent 11.68 s on a formula simplification. DAG size of input: 880 DAG size of output: 385 [2021-07-14 21:43:16,069 WARN L205 SmtUtils]: Spent 7.99 s on a formula simplification. DAG size of input: 574 DAG size of output: 429 [2021-07-14 21:43:16,509 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 21:43:17,217 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 155 [2021-07-14 21:43:18,001 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 129 [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:43:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:43:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:43:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:43:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:43:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:43:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:43:18,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-07-14 21:43:18,329 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:43:18,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:43:18,329 INFO L82 PathProgramCache]: Analyzing trace with hash -331166506, now seen corresponding path program 8 times [2021-07-14 21:43:18,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:43:18,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913045373] [2021-07-14 21:43:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:43:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:43:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:43:18,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:43:18,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913045373] [2021-07-14 21:43:18,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913045373] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:43:18,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272890404] [2021-07-14 21:43:18,466 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:43:18,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:43:18,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:43:18,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:43:18,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:43:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:43:18,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272890404] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:43:18,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:43:18,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-07-14 21:43:18,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481830700] [2021-07-14 21:43:18,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:43:18,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:43:18,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:43:18,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:43:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:43:18,692 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:43:18,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:43:18,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:43:18,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:43:18,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:43:18,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:43:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:43:19,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable189 [2021-07-14 21:43:19,460 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:43:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:43:19,461 INFO L82 PathProgramCache]: Analyzing trace with hash 829116344, now seen corresponding path program 9 times [2021-07-14 21:43:19,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:43:19,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626371141] [2021-07-14 21:43:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:43:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:43:35,512 WARN L205 SmtUtils]: Spent 13.39 s on a formula simplification. DAG size of input: 133 DAG size of output: 64 [2021-07-14 21:43:47,348 WARN L205 SmtUtils]: Spent 11.73 s on a formula simplification. DAG size of input: 128 DAG size of output: 59 [2021-07-14 21:44:09,263 WARN L205 SmtUtils]: Spent 21.83 s on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2021-07-14 21:44:09,446 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2021-07-14 21:44:31,357 WARN L205 SmtUtils]: Spent 21.91 s on a formula simplification. DAG size of input: 215 DAG size of output: 130 [2021-07-14 21:44:31,560 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 57 [2021-07-14 21:46:31,042 WARN L205 SmtUtils]: Spent 1.99 m on a formula simplification. DAG size of input: 390 DAG size of output: 364 [2021-07-14 21:46:32,134 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 86 [2021-07-14 21:50:03,110 WARN L205 SmtUtils]: Spent 3.52 m on a formula simplification. DAG size of input: 534 DAG size of output: 702 [2021-07-14 21:50:03,320 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 702 [2021-07-14 21:50:05,540 WARN L205 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 699 DAG size of output: 133 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown